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[PDF] Top 20 Damage detection in civil and aerospace structures with fiber optic sensors

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Damage detection in civil and aerospace structures with fiber optic sensors

Damage detection in civil and aerospace structures with fiber optic sensors

... In the U.S alone, billions of dollars per year are spent on the inspection and repair of existing structural components. In concrete structures, the high cost of [r] ... Voir le document complet

138

Distributed fiber optics sensing and coda wave interferometry techniques for damage monitoring in concrete structures

Distributed fiber optics sensing and coda wave interferometry techniques for damage monitoring in concrete structures

... (CWI) and Distributed Fiber Optics Sensing (DFOS) techniques for the detection of damages in a laboratory size reinforced concrete beam is presented in this ...discussed and ... Voir le document complet

17

State-of-strain evaluation with fiber Bragg grating rosettes: application to discrimination between strain and temperature effects in fiber sensors

State-of-strain evaluation with fiber Bragg grating rosettes: application to discrimination between strain and temperature effects in fiber sensors

... 10 and poly- ...strain and temperature, e.g., in smart structures, 12–14 and have unique advantages over classical electrical strain gauges ~metal-foil resistance and ... Voir le document complet

12

Global methodology for damage detection and localization in civil engineering structures

Global methodology for damage detection and localization in civil engineering structures

... Curvature Damage Factor (CDF) (level 2) and the flex- ibility method (level 2) [6,7] ...complete and precise monitoring ...better sensors, improving signal-proces- sing, applying existing ... Voir le document complet

11

Model updating techniques for damage detection in concrete beam using optical fiber strain measurement device

Model updating techniques for damage detection in concrete beam using optical fiber strain measurement device

... problem in Eq. (1). In both problems, the rigidity matrix and the boundary associated to the kinematic conditions are the ...lies in the following facts: the kinematic conditions vanish, the ... Voir le document complet

27

Study of the mechanisms associated with the preventive network restoration in fiber optic core networks

Study of the mechanisms associated with the preventive network restoration in fiber optic core networks

... rule and SVMs our preference was the classifier based on naive Bayes rule, because for among other reasons, in order to achieve its maximum prediction accuracy, naive Bayes classifiers need a relatively ... Voir le document complet

124

5GHz CMOS resonant clock buffer with quadrature generation for fiber optic applications

5GHz CMOS resonant clock buffer with quadrature generation for fiber optic applications

... scribed in this chapter, the resonant buffer has enough dynamic range to deliver output clocks in relative quadrature to the HRBB phase ...frequencies and temperature cor- ners, as well as for all ... Voir le document complet

104

Design and evaluation of an automated fiber optic untwisting machine

Design and evaluation of an automated fiber optic untwisting machine

... To actually wind a coil this way, a length of fiber must first be wound half onto one supply spool and half on another, with the midpoint of the fiber between the supply spools [1[r] ... Voir le document complet

110

Correlative Compositional Analysis of Fiber-Optic Nanoparticles

Correlative Compositional Analysis of Fiber-Optic Nanoparticles

... NanoSIMS and Transmission Electron Microscopy. The Mg distribution in silica-based glass doped with Mg, P, Ge and Er is reported in Figure ...range in the 1-10 nm domain, we can ... Voir le document complet

3

Correlative Compositional Analysis of Fiber-Optic Nanoparticles

Correlative Compositional Analysis of Fiber-Optic Nanoparticles

... deposit and dissemination of sci- entific research documents, whether they are pub- lished or ...teaching and research institutions in France or abroad, or from public or private research ... Voir le document complet

3

Fibre optic sensors for high temperatures and fire scenarios

Fibre optic sensors for high temperatures and fire scenarios

... patches in a sequence of ...field in the sample during the ...shown in Figure 2 were tracked. The difference in axial displacement of the patches divided by their axial distance gives the ... Voir le document complet

11

Damage Detection in Structures Based on Principal Component Analysis of Forced Harmonic Responses

Damage Detection in Structures Based on Principal Component Analysis of Forced Harmonic Responses

... structural damage de- ...variation in the original data. PCA is applied here to the problem of damage detection in structures submitted to harmonic ...the damage ... Voir le document complet

7

Progressive damage modeling in composites: from aerospace to automotive industry

Progressive damage modeling in composites: from aerospace to automotive industry

... analyzed with the simplified model. The panel was 2700 mm high, 1100 mm wide, and had a radius of curvature of 1900 ...CFRP and 4 aluminum frames. The skin had 12 plies and a total thickness ... Voir le document complet

4

Investigation and modeling of the fatigue damage in natural fiber composites

Investigation and modeling of the fatigue damage in natural fiber composites

... Fatigue damage model formulation A fatigue damage model is developed through a phenomenological approach in the framework of ...Ladevèze and Le Dantec work [1], the proposed model takes into ... Voir le document complet

12

Data gathering and anomaly detection in wireless sensors networks

Data gathering and anomaly detection in wireless sensors networks

... statement and challenges WSN are often composed of a huge number of tiny devices with limited energy and com- putation ...evolution in the sensor manufacturing process has decreased their cost ... Voir le document complet

124

All-optical interferometric switches for data regeneration in fiber optic networks

All-optical interferometric switches for data regeneration in fiber optic networks

... small control pulse energies seem to produce excellent error rates. These very weak control pulses cause h to vary only slightly from ho. When the control pulse en[r] ... Voir le document complet

203

Creep-Damage interaction in concrete structures

Creep-Damage interaction in concrete structures

... concrete structures is a coupled problem in which creep and damage are ...coupled. In this paper, we start with experimental investigations on concrete notched beams that involve ... Voir le document complet

7

Non-contact local and global damage detection with integrated ultrasonic transducers

Non-contact local and global damage detection with integrated ultrasonic transducers

... designed and assembled so that these screws are sufficiently loaded to prevent the parts from separating while the structure is in ...preload in such screws is essential to secure structural safety ... Voir le document complet

10

Interfacial damage and load transfermodeling in short fiber reinforced composites

Interfacial damage and load transfermodeling in short fiber reinforced composites

... original damage evolution law at the interface, an appropriate load transfer law at the matrix-fiber interface, and a homogenization strategy founded on the generalized Mori-Tanaka ...The ... Voir le document complet

9

Interfacial damage and load transfermodeling in short fiber reinforced composites

Interfacial damage and load transfermodeling in short fiber reinforced composites

... original damage evolution law at the interface, an appropriate load transfer law at the matrix-fiber interface, and a homogenization strategy founded on the generalized Mori-Tanaka ...The ... Voir le document complet

9

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